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slub: Set __GFP_COMP in kmem_cache by default 

Now the __GFP_COMP is set only if the higher-order is not 0. However,
__GFP_COMP flag can be set unconditionally because compound page can
not be created in the order-0 case. And this can also simplify the code
a bit (no need to check the order is 0 or not).

Signed-off-by: Haifeng Xu <haifeng.xu@shopee.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
This commit is contained in:
Haifeng Xu 2024-04-13 15:56:03 +00:00 committed by Vlastimil Babka
parent 5aa5c7b9a0
commit 5b15f3fb89
1 changed files with 1 additions and 3 deletions
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4
mm/slub.c
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@ -5089,9 +5089,7 @@ static int calculate_sizes(struct kmem_cache *s)
if ((int)order < 0)
return 0;
s->allocflags = 0;
if (order)
s->allocflags |= __GFP_COMP;
s->allocflags = __GFP_COMP;
if (s->flags & SLAB_CACHE_DMA)
s->allocflags |= GFP_DMA;